Money Funds' New Openness Unlikely to Stop Regulation

NEW YORK--By voluntarily stepping up disclosure, providers of money-market funds may be hoping to stave off new, tougher regulation. And they may wind up disappointed.

Some of the funds' big customers say the increased transparency they're seeing from some providers, who are publishing market-based per-share valuations on a daily basis, is a step in the right direction. But it's not likely to be a game changer, according to industry...